Ventilator.



O. C. MANN,

VENTILATOB.

APPLICATION FILED SEPT. s, 1914.

Patented Feb. 4, 1919.

Ozwa'ZZe Cflfaznum,

are extended down below side the window Prion.

ORVILLE C. MANN, 01? OAK PARK, ILLINOIS.

VENTILATOR.

To all whom it may concern:

Be it known that I, ORVILLE C. MANN, a citizen of the United States, residing at Oak Park, in the county of Cook and State of Illinois, have invented new and useful Improvementg in- Ventilators, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof.

The purpose of this invention is to provide an improved construction appurtenant to a window or window casing for affording ventilation of the apartment served by the Window. .It consists of the elements and few. tures of construction shown and described, as indicated in the claims.

In the drawings:

Figure 1 is a vertical section through a window casing and a portion of the adjacent wall in which it is located, embodying this invention.

F i 2 is a section Similar to Fig. 1, showing t e parts concerned in the ventilation at open position.

Fig. 3 is avertical section through the wall adjacent to the window casing, showing the latter in side elevation, with ventilating devices open.

In the structure shown in the drawings A represents the wall of the building in which the window casing, B, is situated. The window casing comprises the essential members of such a structure including the uprights, 1, 1, having the runways for the sash, 2 and 3, the bottom sill, 4, sloping down outwardly for drainage, and having at the inner side of the lower sash the customary bottom stop, 5, outside of which said lower sash is shut in the usual manner. For the specific purposes of the present invention the uprights, l, 1, the bottom sill, 4, and from the level of the upper surface of said sill, there are extended inward and downward the said extensions, 1, forming the ends of the ventilator box, which is thereby located under the sill and inward therefrom, extending out into the room a few inches but not more than is frequently customary to extend-the inner sillof thewindow. The ventilator box is rovided with a bottom 5, slightly inclined own outwardly, and an inner side, 6, which extends upwardly from the inner edge of the slant bottom with a slight inward inclination. The ventilator box is open at the upper side in casing, and is provided Specification of Letters Patent.

, side of the Patented Feb. 4, 1919.

Application filed September 8, 1914. Serial No. 860,530.

with a cover, 7 hinged to the inner side of sald ventilator box for folding from a horizontal position which closes the box, up inwardly with respect to the room, to a position at which it has substantially the upward and inward inclination of the inner ventilator box. At the outer side the ventilator box is open except as closed by the means hereinafter described, which means are of the nature of cooperating valves located entirely within the box. The outer opening of the box is preferably provided with a fine wire screen, 8, for excluding dust and insects and which may be applied in the same manner as any exterior Window screen. The valve closures for the box above mentioned comprise a valve plate, 10, hinged to the upper side of the box, substantially in the vertical plane of the lower sash (though the exact position is not material), and operated by links, 12, 12, connected to the inner side at or near lower edge and extending thence to the cover, 7 to which they are pivoted by means of brackets, '13, 13, which are proportioned so as to locate the pivotal connections of the links at a suitable distance below the lower surface of said cover to give said valve plate, 10, the desired range 0 movement from closed to open position in and by the whole movement of the cover from its horizontal closed position to its upwardly and inwardly inclined position described. The proper location for the several connections of these links to the valve plate and to the cover respectively will be readily ascertained by the mechanic in constructing the device in any given dimensions, that is, with a given size of window and any desired depth of ventilator box and width of cover or sill. In order that the valve device may be adapted when closed to effectively exclude the elements,- the valve plate, 10, mentioned, is not relied upon alone to effect the closure, but there is associated with it a cooperating valve member, 15, which is pivoted to the ends of the ventilator box at a very short distance above the outwardly inclined bottom of the box and which has its lower edge beveled at 15 to make an accurate and desirably water-tight seating upon the bottom of the box when said member, 15, is tilted up to a certain inclined osition shown in Fig. 1, that position being such that it will effectively shed water and prevent it even when driven by the wind from being driven up over the upper edge of length of said valve member,

said valve member. The said beveled edge,15f, of the valve member, 15, merges at the inner side of the valve in a cylindricoidal form Or ridge, 15, which extends along the entire being curved about the pivotal axis of said member for about thirty degrees which is the intended range of swing of said valve member, 15, and thence the inner surface of said member extends substantially at a tangent to the said cylindricoidal boss. This construction adapts the said valve member to rock to an angle of not exceeding .30 degrees from a position at which the said beveled edge seats closely upon the surface of the bottom of the venti lator box, to aposition at which said valve member stands inclined at an angle of about -15 degrees trending up inwardly, and in position to have its inner and upper edge encountered by the valve plate, 10, as the latter swings down outwardly from open to ward closed position, said closed position being approximately vertical. The result of this construction is that as said valve plate, 10, is swung by the closing of the cover, 7, from opentoward closed position its lower marginal portion engages the inner upper edge'of the valve member 15, and swings the latter up toward closed position carrying its beveled edge down to seating position: described on the bottom of the box. In the absence of any provision to the contrary, the constructionas thus far described, would be adapted topermit rain driven against the valve plate, 10, to drip down behind the valvemember, 15, into the box. This is prevented by a lip, 16, formed integrally with and projecting outwardly from the outer surface of the valve plate. 10, at a position to overhang and admit behind it the upper inner edge of the valve member, 15, as the latter is swung up by the encounter with it of the lower marginal portion of the valve plate, 10, in the closing movement of the lat ter. This construction results in a shingling relation of the two parts, 10 and 15, effectively excluding'winddriven rain.

The purpose of making the inner side of the box and the cover at open position up wardly and inwardly inclined as described.

is to direct the current of incoming air upwardly and inwardly into the room. This purpose is facilitated providing means for closing the ends ofthe channel by which air is thus directed. such end closures without disfigurement of the structure which protrudes into the room.

and in view of the fact that the cover, in order to reach the upwardly and inwardly inclined position described, must swing through an arc of more than 90 degrees, I make such closure at each end by means of two sectora-l members, l8 and 19, the first secured at one radial edge to the edge of the cover,'-7, and the second secured pivot- In order to provide ally to the cover, substantially at the center of the first sector which is in the axis of the hinge action for closing the box. The angular extent of the first sector, 18, is such that as the cover is closed and the sector is swung down outside the ends of the box, said sector does not swing inward or forward past the inner side of the box, but is completely lapped upon the end of the box. The sectoral member, 19, is of suflicient radial an gular extent to supplement the-member, 18, forspanning the entire angle between the upper edge of the box and the cover at its most widely open position. Either of the two sectoral members may be engaged with the other at their periphery by an inturned clip. As illustrated, the member, 18, being of the greater sectoral extent, is provided with such lip, 18*, engaging the curvededge of the member, 19. To cause the two members to be relatively extended as the cover is opened, a lug, 20, is provided on. the lower inner edgeof'the sectoral member, 19, which encounters a stop on the side of the casing in the opening movement of the cover, and holds it while in the continuation of that opening movement, the sectoral'member, 18, is withdrawn from its lap upon the'member, 19, for extending the end closure as to the full extent of the opening. ,A stop, 22, on the end of the "box encountered-by the edge of themem ber, 19, in the closing move ment of the cover arrests it to cause the two members to be interlapped as the cover closes. In order to prevent the sectoral closing end device front being accidentally sprung outward when at open position, the stop, 21, is preferably in the form of ahook which engages the lug, 20, and is encountered by it.

Since in closing the cover, 7 ,the sectors, 18 and 19, will enter the wall close alongside the ends of the box to the depths of the window recess, and since this prevents finishing the plaster snugly up to the casing at these ends for the distance occupied bythe sectors, it is desirable to providearpocket casing to receive the sectors so that around such casing the plaster may be properly tuckedto make the necessary weather-tight joints.

For this purpose a casing, 23, is provided which may be made of sheet metal having flanges, 23 and 23*, at its upper and lower ends, respectively, by which it may be se-- cured on the outer side of the end of the'box as shown. A proper weather'joint maybe made at the back or outer'edge of the easing by tucking the plaster through from the forward or inner open end of the casing, and around the casing the plaster will be set at any window casing.

I claim 1. In a ventilating device for window casings, in combination with the casing," a

boxforming'a passage under the bottom sill means? of the casing leading from the outer to the inner side and opening at the inner side upwardly substantially at the level of the inner window-sill; a closure for said open ing hinged to the inner side of the box for swinging toward the window toward horizontal position for effecting such closure; a link which is pivotally connected to the said cover at the under side thereof, and a member to which the end of said link is pivotally connectedpivoted under the upper side of the box for swinging up inwardly against said upper side, said parts being proportioned and having their respective pivots located to cause said member to reach and be stopped against the under side of the top of the box when the closure or cover is at open position inclined upwardly away from the window.

2. In a ventilating device for window casings, in combination with the casing, a box forming a passage under the bottom sill of the casing leading from the outer to the inner side of the window; a closure or cover for the passage at the inner end, hinged to the inner side of the box for swinging to ward the window and toward horizontal position for closing, and upward away from the window to an inwardly and upwardlyinclined position for opening; a closure for the outer end of said passage hinged to the under side of the upper wall of the box for swinging upwardly and inwardly against said upper wall for opening, and a link connecting said inner cover and said outer closure having its pivotal connection with the said inner cover offset from the inner or lower side thereof'so as to 'be below a line connecting the hinge pivot of said cover with the pivot of the link to the outer closure at closed position of said cover and closure, whereby the closing of said cover stops the outer closure against opening from the exterior.

3. A closure for a ventilating passage, comprising an upper member hinged at its upper edge and swinging up inward for opening and down outward for closing, and a lower member hinged at its lower edge and swinging up outward for closing, and means stopping its opening movement while it trends up inwardly into the path of the downward swing of the upper member, whereby it is adapted to be engaged by the latter and carried with it to closing posi tion.

t. A closure for a ventilating passage comprising an upper member hinged at its upper edge and swinging up inward for opening and down outward for closing, and a lower member hinged at its lower edge and swinging up outward for closing, and means stopping its opening movement at a position at which it trends up inwardly into the path of the downward swing of the upper member, whereby it is adapted to be engaged by the latter and carried with it to closing position, said upper member having on its outer side a downwardly and outwardly projecting lip positioned for encounter of the lower member in the end of the closing movement.

5. In a ventilating device, comprising a casing which forms a passage from the outer to the inner side of a wall, in combination with such casing, a closure for the inner end of the passage consisting of a member hinged for swinging inwardly to open and having sectoral end pieces which swing edgewise into the wall for closing, and pocket members secured to the outer side of the ends of the casing opening upwardly to receive the sectors in the closing movement.

6. In a ventilating device for a wall, a boxing forming a passage through the wall from outer to inner side, and opening upwardly at the inner side of the wall; a hinged cover for the inner end of the passage, and a hinged closure for the outer end of the passage; a connection from the cover to the closure for simultaneous opening and closing movements of aid cover and closure, the cover being hinged for swinging, in fully opening past a vertical position above its inge pivot; whereby at that position it tends by gravity to hold the closure in open position.

7. In a ventilating device for a wall, a boxing forming a passage through the wall from outer to inner slde, and opening up wardly at the inner side of the wall; a hinged cover for the inner end of the passage, and a hinged closure for the outer end of the passage; a connection from the cover to the closure for simultaneous opening and closing movements ofsaid cover and closure, the cover being hinged for opening upwardly and for swinging in full opening past a vertical plane through its hinge pivot to reach its fully open position, and means for stopping the opening movement of the closure, whereby the opening movement of the cover is stopped after it has passed said vertical position; the connection between the cover and closure being adapted for pushing as well as pulling, whereby the cover tends to close the closure when said cover is swung past said vertical position in its own closing movement.

8. In a ventilating device for a wall, a boxing forming a passage through the wall from inner to outer side, said passage opening upwardly at the inner side of the wall; a cover for the inner end of the passage hinged to the boxing at the edge of said cover remote from the wall, and adapted to open by swinging about its hinge upwardly and away from the wall; a rigid member connecting the cover and closure pivoted to said parts at their proximate sides, the pivot of said connecting member to the cover being offset below the lower side of said cover at its closed position past the plane containing the pivot of said connection to the 010- sure and the hinge axis of the cover; Whereby opening movement of the closure is resisted by, and tends to hold tightly closed, the cover.

9. In a ventilating device for a Wall, a boxing forming a passage through the Wall from inner to outer side thereof, opening upwardly at the inner end; an upwardlyopening cover for said inner end; a closure for the outer end comprising two members one hinged at the upper side and the other hinged at the lower side of the passage and engaging each other at closedposition, the member which is hinged at the upper-side being extended down past the upper edge of the other member at the inner side thereof at closed position of said members, and a link connecting said closure member which is hinged at the upper side to the cover which closes the inner endof thepassage.

In testimony of August, 1914.

.i ORVILLE G. MANN.

Witnesses:

EDNA M. MAoINTosH, LUCY I. STONE.

Copies ofthis patent may me-obtained for five cents each, Dy-addressing the.Gomm1ssionerot ratenh;

Washington, D. G.

whereof, I have hereunto set mv hand at Chicago, Illinois, this 31st day i 

